Generate fbs headers files through cmake during build flow

.gitignore

@@ -9,3 +9,6 @@ compile_commands.json
 .vscode/
 *.log
 *.csv
+
+# Generated flatbuffer header for simulation device
+device/simulation/tt_simulation_device_generated.h

cmake/dependencies.cmake

@@ -62,11 +62,34 @@ CPMAddPackage(
     GITHUB_REPOSITORY google/flatbuffers
     GIT_TAG v24.3.25
     OPTIONS
-        "FLATBUFFERS_BUILD_FLATC OFF"
+        "FLATBUFFERS_BUILD_FLATC ON"
         "FLATBUFFERS_BUILD_TESTS OFF"
         "FLATBUFFERS_SKIP_MONSTER_EXTRA ON"
         "FLATBUFFERS_STRICT_MODE ON"
 )
+function(GENERATE_FBS_HEADER FBS_FILE)
+    get_filename_component(FBS_FILE_NAME ${FBS_FILE} NAME)
+    get_filename_component(FBS_FILE_DIR ${FBS_FILE} DIRECTORY)
+    set(FBS_GENERATED_HEADER "${FBS_FILE_DIR}/${FBS_FILE_NAME}_generated.h")
+    add_custom_command(
+        OUTPUT 
+            ${FBS_GENERATED_HEADER}
+        COMMAND 
+            flatc
+        ARGS 
+            --cpp -o "${FBS_FILE_DIR}/" ${FBS_FILE}
+        DEPENDS 
+            flatc
+            ${FBS_FILE}
+        COMMENT "Building C++ header for ${FBS_FILE}"
+        WORKING_DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}
+    )
+    add_custom_target(
+        flatbuffer_generated_header 
+        DEPENDS 
+            ${FBS_GENERATED_HEADER}
+    )
+endfunction()
 
 ############################################################################################################################
 # libuv (for process management)

device/CMakeLists.txt

@@ -1,5 +1,9 @@
 set(POSITION_INDEPENDENT_CODE ON)
 
+GENERATE_FBS_HEADER(
+    ${PROJECT_SOURCE_DIR}/device/simulation/tt_simulation_device.fbs
+)
+
 set(UMD_DEVICE_SRCS
     architecture_implementation.cpp
     cpuset_lib.cpp
@@ -24,6 +28,8 @@ add_library(device SHARED ${UMD_DEVICE_SRCS})
 add_library(${PROJECT_NAME}::device ALIAS device)
 add_library(${PROJECT_NAME}_device ALIAS device) # For legacy I guess
 
+add_dependencies(device flatbuffer_generated_header)
+
 target_include_directories(
     device
     PUBLIC